Cream separator



Oct. 7, 1947... L. D. MCNEILL 2,428,429

CREAM SEPARATOR Filed July 8, 1942 Patented Oct. 7, 1947 OFFICE 2,428,429. 1 CREAM SEPARATOR Ii'o'cksley 1).. M'eNeill, Winnipeg; Manitoba,

Canada Anplicat'ionJiily 8;.1942, Serial No.v 450,125

My invent-ion relatestofluid separators, particularly for the separation. of a stratum of fluid which has riseirtothe surfacean'd separated from fluid of different specific gravity therebeneath while in a vessel, the invention. concerning even.

more particularly the separation of cream from milk which has risen to the top of the bottle in which, it: is contained, an object of my invention being to proyidesuch a separator which functions one which; ifijmadein. various sizes;.would enable the user to; select the percentage:

possible: with. the

within the bottle neck, cant, may be varied according to the Wishes of the user.

drawings, in which:

Figure 1 is a side elevation, partly in section illustrating the first embodiment of my separator, in situ within a standard milk bottle.

Figure 2 is a full sized plan of the kind of cap which might advantageously be used with one form of my cream separator.

Figure 3 is a section on the line -5 of Figure 2.

In the drawings like characters of reference indicate corresponding parts in the different figures.

The first embodiment of my invention comof cream. de-- sired to be: decantered, a. selection. which is not cream, bowl? or cream: line? bottle and. associated ladle .noW in; extensive: use.

prises a hollow cylinder I of a diameter slightly less, than the, inside diameter" at the neck line 2 ofa milk bottle 3; the cylinder being closed at the lower end thereof by means of the apertured 4 'disc'd or its equivalent.

A projecting, flange 5' extends around the upper open end of the cylinder i, this flange being of a diameter such that it will sit comfortably within the recess 6 which is provided in all con ventional milk bottles to receive the standard cardboard closure disc.

A rubber sealing gasket in the form of a ring extends around the cylinder and against the underside of the flange 5; a finger piece in the form of the yoke abeing provided and secured at its ends to the upper extremitiesof'the cylinder.

Iir usingthis embodiment, it is to be understood that one merely lowers the cylinder gently andfairlyslowly into the body of cream which has cream rises through the aperture 9; preferably-be approximately equal to the dimensions shown in Figure 1. Eventually, the separator will come to rest and be suspended in the bottle from the surrounding flange 5 which will rest in the complementary recess 6, subject only to the interposition of the rubber gasket 1.

Decanting of the cream within the cylinder I is now effected by tilting the bottle with the separator in it, this is quite conveniently done with one hand While a jug or other receptacle may be held in the other to receive the cream, the bottle being grasped with three fingers and the thumb while the forefinger is pressed downwardly upon the finger piece 8 so as to seal the neck and prevent the escape of fluid outside the cylinder. Some persons may prefer to grasp the bottle by encircling it with the four fingers of the hand and holding the separator in sealed position via the finger piece by exerting enough pressure on the same with the thumb.

In Figures 2 and 3 I have illustrated a means whereby a special and novel cardboard closure disc or sealer cap 22 may be utilized in substitution for the finger piece 8 which may be dispensed with, and from the figures in question, it will be seen that I provide, in the upper surface of the disc 22, a lifting tab 23 of substantial length and designed, when in place, to cover and conceal two spaced apertures 24 and 25. It is to be understood that the lifting tab is about half the thickness of the urrounding material of which the disc is formed, and at this point I would explain that lifting tabs of the character herein described, and formed from the surrounding material of the discs are conventional, save and excepting for the fact that they are usually shorter and smaller than the one I propose to employ and are not intended, nor do they, con- 6 ceal an aperture or apertures therebeneath as in the present arrangement.

With such a disc as is illustrated in Figures ,2 and 3, a cream separator of the embodiment illustrated in Figure 1, but without the mem- 10 her 8 may be lowered into a bottle after the disc has been removed. When the separator has sunk to the point where the flange 29 thereof engages the shoulder 27 of the milk bottle, the disc is j reinserted as clearly illustrated.

24 and 25 are left exposed, tilting of the bottlev will permit the cream to run out of one hole, and it is to be understood that the forefinger of f the hand grasping the neck 28 of the bottle may be applied against the upper surface of the disc 22 to prevent any possibility of the cream separator from falling out.

I would finally mention in connection with the arrangement just described, that it is unneces sary to use a rubber gasket 1 with this -embodi-,

ment, since the re-inserted disc will effect a seal around the edge thereof against the rim 29 of the bottle, milk bottle rims being of the configuration illustrated in the accompanying Figure 3 from which it will be seen that the end surface 30 30 thereof is slightly rounded, thus providing a slight annular constriction helping to retain the disc in place. In the accompanying claim however, it is to be understood that by the word rim I intend to refer'to the shoulder 21,'the.35,- 1 5 4 4 rim 29 or the end surface 30. 7

Since various modifications can be made in my invention as hereinabove described and many apparently widely different embodiments of same made Within the scope of the claim without de- 40: 2,277,001

parting from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative If the apertures 5 only and notin a limiting sense and I desire only such limitations placed thereon as are specifically expressed in the accompanying claim.

What I claim as my invention is:

A separator for facilitating .the removal of a predetermined volume of fluid from an open vessel, comprising in combination, a cylinder, an apertured disc closing the lower end of saidcylinder, a projecting flange around the upper open end of said cylinder, a sealing gasket ring around said flange, and a finger piece spanning the upper open end of said cylinder, said cylinder being designed for submergence into said fluid, said flange engaging the rim of the opening of said vessel subject to the interposition of said gasket and under pressure by a user on said finger piece to maintain said separator firmly in position upon the tilting of said vessel to decant the contents of said cylinder, without ingress of further fluid thereinto meanwhile.

LOCKSLEY D. MCNEILL. REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 7 Date Bender Apr. 3, 1923 

